Increased NR2A:NR2B ratio compresses long-term depression range and constrains long-term memory.
Increased NR2A:NR2B ratio compresses long-term depression range and constrains long-term memory.
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NR2A:NR2B 比率增加会压缩长期抑郁范围并限制长期记忆。
DOI:
10.1038/srep01036
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发表时间:
2013
影响因子:
4.6
通讯作者:
Tsien, Joe Z.
中科院分区:
文献类型:
--
作者:
Cui, Zhenzhong;Feng, Ruiben;Jacobs, Stephanie;Duan, Yanhong;Wang, Huimin;Cao, Xiaohua;Tsien, Joe Z.
The NR2A:NR2B subunit ratio of the NMDA receptors is widely known to increase in the brain from postnatal development to sexual maturity and to aging, yet its impact on memory function remains speculative. We have generated forebrain-specific NR2A overexpression transgenic mice and show that these mice had normal basic behaviors and short-term memory, but exhibited broad long-term memory deficits as revealed by several behavioral paradigms. Surprisingly, increased NR2A expression did not affect 1-Hz-induced long-term depression (LTD) or 100 Hz-induced long-term potentiation (LTP) in the CA1 region of the hippocampus, but selectively abolished LTD responses in the 3–5 Hz frequency range. Our results demonstrate that the increased NR2A:NR2B ratio is a critical genetic factor in constraining long-term memory in the adult brain. We postulate that LTD-like process underlies post-learning information sculpting, a novel and essential consolidation step in transforming new information into long-term memory.
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DOI:
10.1073/pnas.1008200107
发表时间:
2010-09-21
影响因子:
11.1
作者:
Ge, Yuan;Dong, Zhifang;Wang, Yu Tian
通讯作者:
Wang, Yu Tian
影响因子:
16.2
作者:
Etkin, A;Alarcón, JM;Kandel, ER
通讯作者:
Kandel, ER
影响因子:
3.7
作者:
Chen G;Wang LP;Tsien JZ
通讯作者:
Tsien JZ
DOI:
10.1073/pnas.92.19.8851
发表时间:
1995-09-12
影响因子:
11.1
作者:
BRANDON, EP;ZHUO, M;IDZERDA, RL
通讯作者:
IDZERDA, RL
影响因子:
3.4
作者:
Cui, ZZ;Lindl, KA;Tsien, JZ
通讯作者:
Tsien, JZ